UpdatedThe new version of OS X, Yosemite, ties the desktop OS closer still with Apple's mobile OS.
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UpdatedOur latest look at the Windows 10 Insider Preview reveals an OS that's nearly finished. The new Start menu and Cortana are continually improving, while Universal apps promise much.
UpdatedThe Start button returns, and with Update 1, users can boot straight to desktop. But this is still refinement over reinvention.
UpdatedGoogle Now comes of age and older devices rejoice: the OS formerly known as Key Lime Pie is here.
UPDATEDApple's iPhone and iPad update is now up to iOS 8.1.3, which fixes bugs and brings Apple Pay to some users.
UpdatedSteam Machines may be delayed, but the OS is in beta. Here are our thoughts so far and the latest details.
UpdatedA more detailed look at the new Start Screen menu and running you through the headline features of Microsoft's new OS.
Sleeker, flatter and much, much more powerful - Google's managed to outdo expectations with the new Lollipop launch.